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 # diagram-parser
 
-Experimental project which extracts PIS codes from diagrams received via email and automatically creates an issue if any are found that are not present in the data repo.
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+This is an experimental project and is not yet used as part of the OwlBoard stack.
+
+## Aims
+
+The aim of diagram-parser is to simplify the addition of PIS codes that are not yet in the OwlBoard data source.  The planned implementation is as follows:
+
+ - diagram-parser is subscribed to an email inbox (IMAP/POP3)
+ - Formatted train-crew schedule cards are sent to the inbox (DOCX format) and loaded by diagram-parser
+ - List of existing PIS codes is loaded and a list of non-existent codes is compiled (0000-9999)
+ - If a code is found both in the diagram and on the list of non-existent codes, a Gitea issue is opened providing details of the code.
+ - Once the program has run and extracted only the relavent details, the email is deleted and the file is closed and not stored.
+ - The evantual aim is to avoid any manual searching of the DOCX files.
+
+The current process of adding new codes involves being made aware of them face to face, or finding them myself and manually finding and adding them to the data source.
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